PDE — Most Debated Topics

Community-voted ranking of 78 topics, sorted by disagreement level. Higher dispute = more test-takers disagree on the answer.

#1
How to establish consistent BigQuery spend?
S-Grade Dispute: 62% 32 comments
#2
Triggering Airflow DAGs Reactively in Private Cloud Composer
S-Grade Dispute: 60% 10 comments
#3
How to resolve Cloud Composer 2 worker pod evictions and task failures?
S-Grade Dispute: 56% 12 comments
#4
Which Google Cloud database for on-prem PostgreSQL with analytics?
S-Grade Dispute: 50% 20 comments
#5
How to Improve Data Discoverability Across BigQuery, Pub/Sub, and PostgreSQL?
S-Grade Dispute: 49% 21 comments
#6
How to configure Dataflow Shared VPC permissions?
S-Grade Dispute: 45% 17 comments
#7
How to achieve cost-effective BigQuery disaster recovery?
S-Grade Dispute: 45% 7 comments
#8
How to Configure BigQuery SQL Pipeline Retries and Notifications?
S-Grade Dispute: 44% 12 comments
#9
How to stream 1.5 GB/s to BigQuery with exactly-once semantics?
S-Grade Dispute: 44% 16 comments
#10
How to Orchestrate Event-Driven Table-Specific ETL Workflows?
S-Grade Dispute: 43% 9 comments
#11
How to Encrypt Existing BigQuery Data at Rest with CMEK?
S-Grade Dispute: 42% 21 comments
#12
How to centralize data using a GUI with CMEK?
S-Grade Dispute: 36% 5 comments
#13
Best BigQuery Data Model for Streaming Sensor Metrics with Cost Minimization?
S-Grade Dispute: 35% 11 comments
#14
Why are CSV/JSON files not discovered in a Dataplex curated zone?
S-Grade Dispute: 34% 19 comments
#15
How Do You Apply a BigQuery Reservation to a CDC Process?
S-Grade Dispute: 31% 14 comments
#16
How Should You Window Streaming Noise Data in Dataflow?
S-Grade Dispute: 31% 17 comments
#17
How to Migrate Apache Spark Jobs to Google Cloud
S-Grade Dispute: 31% 7 comments
#18
BigQuery vs Cloud SQL for High-QPS API Serving
S-Grade Dispute: 29% 12 comments
#19
How to Run Dataflow with Internal-IP-Only Workers Accessing Cloud Storage and BigQuery?
S-Grade Dispute: 27% 8 comments
#20
How to make GDPR tag values searchable while limiting sensitive data access?
S-Grade Dispute: 27% 8 comments
#21
How to Resolve BigQuery Concurrent Query Quota Errors?
S-Grade Dispute: 24% 7 comments
#22
Why Did BigQuery Daily Storage Increase 50% After Pipeline Deployment?
S-Grade Dispute: 24% 5 comments
#23
How to optimize Cloud Storage costs when retrieval must be free?
S-Grade Dispute: 22% 8 comments
#24
How to Explore On-Premises ORC Data Cost-Effectively in Google Cloud?
S-Grade Dispute: 20% 9 comments
#25
How to Minimize RPO for Cloud Storage During Regional Failures?
S-Grade Dispute: 19% 9 comments
#26
How to normalize BigQuery data with a no-code recurring job?
S-Grade Dispute: 19% 9 comments
#27
Cloud Storage and Dataflow: How to Achieve a 15-Minute RPO with Pub/Sub?
S-Grade Dispute: 18% 9 comments
#28
What is the best Cloud SQL setup for low RTO/RPO during a regional outage?
S-Grade Dispute: 17% 6 comments
#29
How should you allocate BigQuery reservations for SLA and ad-hoc projects?
S-Grade Dispute: 17% 13 comments
#30
How to implement a data mesh for Cloud Storage and BigQuery data sharing?
S-Grade Dispute: 16% 11 comments
#31
How should you de-identify email fields before BigQuery joins?
S-Grade Dispute: 15% 13 comments
#32
Optimizing BigQuery Aggregations with Materialized Views
S-Grade Dispute: 14% 9 comments
#33
What Is the Correct Dataplex Lake and Zone Design for Data Mesh?
S-Grade Dispute: 12% 6 comments
#34
Which GUI service moves files to Cloud Storage with customer-managed encryption keys?
S-Grade Dispute: 12% 10 comments
#35
How to update Dataflow streaming pipeline without data loss?
S-Grade Dispute: 12% 9 comments
#36
How to encrypt BigQuery data with on-premises HSM keys using Google managed solutions?
S-Grade Dispute: 11% 7 comments
#37
How to Identify Bottlenecks in a Dataflow Pipeline After Fusion?
S-Grade Dispute: 10% 9 comments
#38
How to minimize BigQuery storage costs for time-series data?
S-Grade Dispute: 10% 8 comments
#39
Why Does Dataflow Autoscaler Not Add Workers? Use Reshuffle?
S-Grade Dispute: 8% 7 comments
#40
How to prevent duplicate processing in Pub/Sub pull subscriptions?
S-Grade Dispute: 7% 7 comments
#41
How to programmatically stream or batch load masked data to BigQuery?
A-Grade Dispute: 7% 4 comments
#42
How to assign Dataplex IAM roles for data engineers and analytic users in a data mesh?
S-Grade Dispute: 6% 6 comments
#43
How to securely connect dynamic IP apps to Cloud SQL?
S-Grade Dispute: 6% 7 comments
#44
How to recover from BigQuery table corruption within 7 days with lowest RPO?
S-Grade Dispute: 5% 6 comments
#45
How to preprocess customer data for consumer analytics while complying with data privacy?
S-Grade Dispute: 5% 5 comments
#46
Migrating HDFS Data Lake to Cloud Storage with Column-Level Security
S-Grade Dispute: 4% 5 comments
#47
Modernizing Hadoop and Airflow workloads to Google Cloud
A-Grade Dispute: 0% 6 comments
#48
How to restrict resource location to europe-west3?
A-Grade Dispute: 0% 6 comments
#49
How to investigate BigQuery query performance and slot usage?
A-Grade Dispute: 0% 5 comments
#50
How to implement per-user crypto-deletion in BigQuery?
A-Grade Dispute: 0% 3 comments
#51
How to retrieve street addresses from BigQuery using Cloud DLP?
A-Grade Dispute: 0% 6 comments
#52
How to filter nested BigQuery data cost-effectively?
A-Grade Dispute: 0% 6 comments
#53
How to ensure legal hold documents are not deleted or modified?
A-Grade Dispute: 0% 4 comments
#54
How to design a historical data model in BigQuery?
A-Grade Dispute: 0% 6 comments
#55
How to replicate Oracle data to BigQuery with minimal infrastructure?
A-Grade Dispute: 0% 3 comments
#56
Minimizing Cloud Storage costs with Autoclass
A-Grade Dispute: 0% 6 comments
#57
How to enable business users to clean and analyze data in spreadsheets?
A-Grade Dispute: 0% 6 comments
#58
How to Model Tightly Coupled BigQuery Tables for Performance?
A-Grade Dispute: 0% 6 comments
#59
How to deploy DAGs to Cloud Composer using Cloud Build?
A-Grade Dispute: 0% 7 comments
#60
How to mitigate zonal failures in Dataflow?
A-Grade Dispute: 0% 6 comments
#61
How to configure Dataflow hopping windows for real-time aggregation?
A-Grade Dispute: 0% 7 comments
#62
How Should You Route Failed Dataflow Messages for Alerting?
S-Grade Dispute: 0% 9 comments
#63
How to Configure BigQuery Roles for Shared and Private Datasets?
A-Grade Dispute: 0% 7 comments
#64
How to capture late data in Dataflow streaming pipelines?
A-Grade Dispute: 0% 7 comments
#65
How to prevent reading expired Bigtable data?
A-Grade Dispute: 0% 7 comments
#66
How to optimize slow external table queries with many files?
A-Grade Dispute: 0% 6 comments
#67
Storing time-series data for low latency lookups and analytics?
A-Grade Dispute: 0% 6 comments
#68
How to minimize costs for immutable BigQuery backups?
A-Grade Dispute: 0% 6 comments
#69
How to Migrate On-Prem Spark Jobs to Google Cloud with Minimal Changes?
S-Grade Dispute: 0% 9 comments
#70
How to manage data, lineage, and quality in a decentralized ecosystem?
A-Grade Dispute: 0% 8 comments
#71
How to configure Pub/Sub retries and dead-lettering?
A-Grade Dispute: 0% 6 comments
#72
How to share BigQuery datasets self-servingly and cost-effectively?
A-Grade Dispute: 0% 5 comments
#73
How to minimize Cloud SQL load for BigQuery analytics?
A-Grade Dispute: 0% 8 comments
#74
How Can New Pub/Sub Subscribers Read the Last 30 Days of Clickstream Data?
A-Grade Dispute: 0% 8 comments
#75
Which Cloud Storage design meets a 15-minute RPO for Dataproc Spark jobs?
A-Grade Dispute: 0% 4 comments
#76
How to Fix HTTP 403 Errors from Expired Signed URLs in Storage Transfer Service?
A-Grade Dispute: 0% 6 comments
#77
How to speed up repeated BigQuery queries on petabyte tables?
A-Grade Dispute: 0% 3 comments
#78
How to Protect Sensitive Customer Data While Retaining All Data?
A-Grade Dispute: 0% 3 comments

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